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Preventive cardiology programs designed to help individuals change their diets and reduce cigarette smoking in an industrial setting were reviewed. The goals of the heart diet included maintenance of a desirable weight, decreased intake of saturated fats and cholesterol, and increased intake of polyunsaturated fats. The major components of a behavioral weight control program included self monitoring, stimulus control methods, and the reinforcement of reported behavior and weight changes, and were adaptable to ongoing counseling programs at the work site. Followup studies of the outcomes of such behavior modification procedures were reviewed with regard to additional short and long term benefits. Industrial opportunities to assist alterations in dietary content focused on the cafeteria and included the replacement of junk foods by more nutritious snacks, buying low salt foods and using minimal salt in cooking, and increased use of low fat foods. The components of a smoking cessation program at the work site included the provision of relevant information regarding the benefits of smoking cessation, short term goal setting, modeling nonsmoking behavior, self monitoring procedures, aversive procedures directed toward the long term goal of quitting, and maintenance of cessation including support mechanisms and means to deal with tempting situations.